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Finding the Fourth Proportional to 122,093.46, 168,485.04 and 67,643.39

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Solution

The fourth proportional to 122,093.46, 168,485.04 and 67,643.39 is: 93,345.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,093.46 : 168,485.04 = 67,643.39 : x
  2. Step 2: Convert to fraction form
    122,093.46/168,485.04 = 67,643.39/x
  3. Step 3: Cross multiply
    122,093.46x = 168,485.04 × 67,643.39
  4. Step 4: Simplify right side
    122,093.46x = 11,396,899,691.10
  5. Step 5: Solve for x
    x = 11,396,899,691.10/122,093.46
  6. Step 6: Final answer
    x = 93,345.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.